Home / 3,894.42-5,373.58-2,215.73

Finding the Fourth Proportional to 3,894.42, 5,373.58 and 2,215.73

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Solution

The fourth proportional to 3,894.42, 5,373.58 and 2,215.73 is: 3,057.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,894.42 : 5,373.58 = 2,215.73 : x
  2. Step 2: Convert to fraction form
    3,894.42/5,373.58 = 2,215.73/x
  3. Step 3: Cross multiply
    3,894.42x = 5,373.58 × 2,215.73
  4. Step 4: Simplify right side
    3,894.42x = 11,906,405.58
  5. Step 5: Solve for x
    x = 11,906,405.58/3,894.42
  6. Step 6: Final answer
    x = 3,057.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.